Hello again!
I have stumbled across another issue. When changing the x-axis interval from 1Y to any other interval in your provided jsfiddle, the line graphs don't all start from 0% anymore. Is it possible to compare them all by percent, while they use different y-axis to keep the y-axis crosshair on only one of the lines? My specific issue is that I have a candlestick chart for my stock and a spline chart for an index to compare with, but I only want the y-axis crosshairs to snap to the candlesticks, not the spline. I managed to do this, however, the spline curve does not start from 0% (I'm assuming since it has its own y-axis?). I attached two images of what my graph looks like and what I want to achieve. Hope my question is clear, let me know otherwise! Thanks in advance